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Уязвимости linux-kvm · Страница 153

За последние 30 дней в linux-kvm опубликовано уязвимостей: 269; в каталоге KEV: 0.

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  1. CVE-2023-53146

    Средний · CVSS 6.7EPSS 0,19%Нет опубликованного исправления

    media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()

    In the Linux kernel, the following vulnerability has been resolved: media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer() In dw2102_i2c_transfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach dw2102_i2c_transfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 950e252cb469 ("[media] dw2102: limit messages to buffer size")

    linux-kvmОперационные системы
    Опубликовано Обновлено
    Исходное сообщение 1 ↗Исходное сообщение 2 ↗Исходное сообщение 3 ↗

  2. CVE-2024-28956

    Средний · CVSS 5.7EPSS 0,43%Нет опубликованного исправления

    CVE-2024-28956

    Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  3. CVE-2023-53145

    Высокий · CVSS 7.8EPSS 0,19%Нет опубликованного исправления

    Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition In btsdio_probe, the data->work is bound with btsdio_work. It will be started in btsdio_send_frame. If the btsdio_remove runs with a unfinished work, there may be a race condition that hdev is freed but used in btsdio_work. Fix it by canceling the work before do cleanup in btsdio_remove.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  4. CVE-2025-37885

    Высокий · CVSS 8.8EPSS 0,32%Нет опубликованного исправления

    KVM: x86: Reset IRTE to host control if *new* route isn't postable

    In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Reset IRTE to host control if *new* route isn't postable Restore an IRTE back to host control (remapped or posted MSI mode) if the *new* GSI route prevents posting the IRQ directly to a vCPU, regardless of the GSI routing type. Updating the IRTE if and only if the new GSI is an MSI results in KVM leaving an IRTE posting to a vCPU. The dangling IRTE can result in interrupts being incorrectly delivered to the guest, and in the worst case scenario can result in use-after-free, e.g. if the VM is torn down, but the underlying host IRQ isn't freed.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  5. CVE-2025-37883

    Средний · CVSS 5.5EPSS 0,29%Нет опубликованного исправления

    s390/sclp: Add check for get_zeroed_page()

    In the Linux kernel, the following vulnerability has been resolved: s390/sclp: Add check for get_zeroed_page() Add check for the return value of get_zeroed_page() in sclp_console_init() to prevent null pointer dereference. Furthermore, to solve the memory leak caused by the loop allocation, add a free helper to do the free job.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  6. CVE-2025-37879

    Критический · CVSS 9.8EPSS 0,72%Нет опубликованного исправления

    9p/net: fix improper handling of bogus negative read/write replies

    In the Linux kernel, the following vulnerability has been resolved: 9p/net: fix improper handling of bogus negative read/write replies In p9_client_write() and p9_client_read_once(), if the server incorrectly replies with success but a negative write/read count then we would consider written (negative) <= rsize (positive) because both variables were signed. Make variables unsigned to avoid this problem. The reproducer linked below now fails with the following error instead of a null pointer deref: 9pnet: bogus RWRITE count (4294967295 > 3)

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  7. CVE-2025-37862

    Средний · CVSS 5.5EPSS 0,31%Нет опубликованного исправления

    HID: pidff: Fix null pointer dereference in pidff_find_fields

    In the Linux kernel, the following vulnerability has been resolved: HID: pidff: Fix null pointer dereference in pidff_find_fields This function triggered a null pointer dereference if used to search for a report that isn't implemented on the device. This happened both for optional and required reports alike. The same logic was applied to pidff_find_special_field and although pidff_init_fields should return an error earlier if one of the required reports is missing, future modifications could change this logic and resurface this possible null pointer dereference again. LKML bug report: https://lore.kernel.org/all/CAL-gK7f5=R0nrrQdPtaZZr1fd

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  8. CVE-2025-37858

    Средний · CVSS 5.5EPSS 0,31%Нет опубликованного исправления

    fs/jfs: Prevent integer overflow in AG size calculation

    In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Prevent integer overflow in AG size calculation The JFS filesystem calculates allocation group (AG) size using 1 << l2agsize in dbExtendFS(). When l2agsize exceeds 31 (possible with >2TB aggregates on 32-bit systems), this 32-bit shift operation causes undefined behavior and improper AG sizing. On 32-bit architectures: - Left-shifting 1 by 32+ bits results in 0 due to integer overflow - This creates invalid AG sizes (0 or garbage values) in sbi->bmap->db_agsize - Subsequent block allocations would reference invalid AG structures - Could lead to: - Filesystem corr

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  9. CVE-2025-37857

    Средний · CVSS 5.5EPSS 0,31%Нет опубликованного исправления

    scsi: st: Fix array overflow in st_setup()

    In the Linux kernel, the following vulnerability has been resolved: scsi: st: Fix array overflow in st_setup() Change the array size to follow parms size instead of a fixed value.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  10. CVE-2025-37853

    Средний · CVSS 5.5EPSS 0,28%Нет опубликованного исправления

    drm/amdkfd: debugfs hang_hws skip GPU with MES

    In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: debugfs hang_hws skip GPU with MES debugfs hang_hws is used by GPU reset test with HWS, for MES this crash the kernel with NULL pointer access because dqm->packet_mgr is not setup for MES path. Skip GPU with MES for now, MES hang_hws debugfs interface will be supported later.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  11. CVE-2025-37851

    Средний · CVSS 5.5EPSS 0,3%Нет опубликованного исправления

    fbdev: omapfb: Add 'plane' value check

    In the Linux kernel, the following vulnerability has been resolved: fbdev: omapfb: Add 'plane' value check Function dispc_ovl_setup is not intended to work with the value OMAP_DSS_WB of the enum parameter plane. The value of this parameter is initialized in dss_init_overlays and in the current state of the code it cannot take this value so it's not a real problem. For the purposes of defensive coding it wouldn't be superfluous to check the parameter value, because some functions down the call stack process this value correctly and some not. For example, in dispc_ovl_setup_global_alpha it may lead to buffer overflow. Add check for this v

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  12. CVE-2025-37841

    Средний · CVSS 5.5EPSS 0,3%Нет опубликованного исправления

    pm: cpupower: bench: Prevent NULL dereference on malloc failure

    In the Linux kernel, the following vulnerability has been resolved: pm: cpupower: bench: Prevent NULL dereference on malloc failure If malloc returns NULL due to low memory, 'config' pointer can be NULL. Add a check to prevent NULL dereference.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  13. CVE-2025-37839

    Высокий · CVSS 7.8EPSS 0,33%Нет опубликованного исправления

    jbd2: remove wrong sb->s_sequence check

    In the Linux kernel, the following vulnerability has been resolved: jbd2: remove wrong sb->s_sequence check Journal emptiness is not determined by sb->s_sequence == 0 but rather by sb->s_start == 0 (which is set a few lines above). Furthermore 0 is a valid transaction ID so the check can spuriously trigger. Remove the invalid WARN_ON.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  15. CVE-2025-37834

    Средний · CVSS 5.5EPSS 0,19%Нет опубликованного исправления

    mm/vmscan: don't try to reclaim hwpoison folio

    In the Linux kernel, the following vulnerability has been resolved: mm/vmscan: don't try to reclaim hwpoison folio Syzkaller reports a bug as follows: Injecting memory failure for pfn 0x18b00e at process virtual address 0x20ffd000 Memory failure: 0x18b00e: dirty swapcache page still referenced by 2 users Memory failure: 0x18b00e: recovery action for dirty swapcache page: Failed page: refcount:2 mapcount:0 mapping:0000000000000000 index:0x20ffd pfn:0x18b00e memcg:ffff0000dd6d9000 anon flags: 0x5ffffe00482011(locked|dirty|arch_1|swapbacked|hwpoison|node=0|zone=2|lastcpupid=0xfffff) raw: 005ffffe00482011 dead000000000100 dead000000000122 ffff

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  16. CVE-2025-37823

    Высокий · CVSS 7.8EPSS 0,23%Нет опубликованного исправления

    net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too

    In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  17. CVE-2025-37819

    Высокий · CVSS 7.8EPSS 0,22%Нет опубликованного исправления

    irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode()

    In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode() With ACPI in place, gicv2m_get_fwnode() is registered with the pci subsystem as pci_msi_get_fwnode_cb(), which may get invoked at runtime during a PCI host bridge probe. But, the call back is wrongly marked as __init, causing it to be freed, while being registered with the PCI subsystem and could trigger: Unable to handle kernel paging request at virtual address ffff8000816c0400 gicv2m_get_fwnode+0x0/0x58 (P) pci_set_bus_msi_domain+0x74/0x88 pci_register_host_bridge+0x194/0x548 This is easily reproducib

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  18. CVE-2025-37817

    Высокий · CVSS 7.8EPSS 0,22%Нет опубликованного исправления

    mcb: fix a double free bug in chameleon_parse_gdd()

    In the Linux kernel, the following vulnerability has been resolved: mcb: fix a double free bug in chameleon_parse_gdd() In chameleon_parse_gdd(), if mcb_device_register() fails, 'mdev' would be released in mcb_device_register() via put_device(). Thus, goto 'err' label and free 'mdev' again causes a double free. Just return if mcb_device_register() fails.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  19. CVE-2025-37810

    Высокий · CVSS 7.8EPSS 0,25%Нет опубликованного исправления

    usb: dwc3: gadget: check that event count does not exceed event buffer length

    In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: gadget: check that event count does not exceed event buffer length The event count is read from register DWC3_GEVNTCOUNT. There is a check for the count being zero, but not for exceeding the event buffer length. Check that event count does not exceed event buffer length, avoiding an out-of-bounds access when memcpy'ing the event. Crash log: Unable to handle kernel paging request at virtual address ffffffc0129be000 pc : __memcpy+0x114/0x180 lr : dwc3_check_event_buf+0xec/0x348 x3 : 0000000000000030 x2 : 000000000000dfc4 x1 : ffffffc0129be000 x0 : ffffff87aad60080

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  20. CVE-2025-37808

    Средний · CVSS 5.7EPSS 0,21%Нет опубликованного исправления

    crypto: null - Use spin lock instead of mutex

    In the Linux kernel, the following vulnerability has been resolved: crypto: null - Use spin lock instead of mutex As the null algorithm may be freed in softirq context through af_alg, use spin locks instead of mutexes to protect the default null algorithm.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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